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What About the "Slim Jim" Antenna ?
The Slim Jim Antenna
http://www.hamuniverse.com/slimjim.html The Slim Jim is a Vertically Polarized Omni-Directional End-Fed Antenna having considerable gain and this is concentrated almost parallel to ground toward the horizon rather than skyward making it more efficient than a ground plane type antenna by about 50 percent better. http://www.hamuniverse.com/2meter300ohmslimjim.html Due to it's SLIM {Very Thin Shape} used in it's Design, there is very little wind loading. It is fed with 50 ohm coax. http://www.ee.washington.edu/circuit...ntennas/slim_j It uses a 'J' type Matching Stub (J Integrated Matching = JIM), http://www.pcs-electronics.com/en/gu...p?sub=antennas Hense the name SLIM JIM. http://en.wikipedia.org/wiki/Slim_Jim_(antenna) Credit for the original design goes to F.C. Judd [G2BCX]. http://www.ee.washington.edu/circuit...ntennas/slim_j How to make a Weatherproof Vertically Polarised Omni-Directional Aerial http://www.irational.org/sic/radio/omni-aerial.html Choosing the Correct Antenna http://www.marcspages.co.uk/tech/antchose.htm Marc's Technical Pages http://www.marcspages.co.uk/tech/index.htm So could I make one of these Slim Jim Antennas for the Shortwave 49 Meter Band ? ? ? and just how Thin-and-Tall would it be ? ? ? What About the "Slim Jim" Antenna ? http://groups.yahoo.com/group/Shortw...a/message/9180 obtw - too fat to be called 'slim' and my name ain't 'jim' ) a- iane ~ RHF |
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